Suhaana orders Ishaan out, he covers for her... Suhaana leaves Ishaan stranded, he covers for her... Suhaana leaves bhabhis humiliated, Ishaan doesn't even ask her to apologize. He is obviously proving to be a really good husband.
On the other hand... R&D are stuck by themselves. Even after Inder & Ilesh know of what had happened they clearly said they would do nothing about. While they "understand" how their wives were feeling they were not willing to "support" them. And even now they are clearly standing by Suhaana instead of supporting R&D. First, they didn't want to look like the bad guys causing tension in the family and asked R&D to deal with it themselves. And now when R&D are dealing with it in their own way, they suddenly want to intervene and go talk to Ishaan because they feel R&D are not right...